Seguridad en redes y dispositivos

What key knowledge do I need about network protocols?

In the world of cybersecurity, knowing network protocols is essential. Not only do you need to know what they are and how they work, but also their secure equivalents. For example, HTTP is the non-secure version, while HTTPS is the version with security protocols implemented. The same goes for DNS and DNSSEC. It is crucial to understand which port each protocol uses and how they evolved to more secure versions by implementing specific controls and conditions.

• Protocol equivalence: It is essential to identify which is the secure version of each common protocol.
• Ports: Knowing which port each protocol runs on helps us to recognize traffic and configure firewalls.
• Security controls: Understanding how protocols became secure increases our ability to implement and maintain a protected environment.

How can we mitigate network attacks?

Identifying the most common types of network attacks and their corresponding mitigation methods is an essential skill. It is vital to develop the ability to anticipate and neutralize potential threats before they compromise our security.

• Attack types: Know the most common attacks, such as DDoS, sniffing or spoofing.
• Mitigation controls: Implement controls such as firewalls, intrusion detection systems (IDS), or VPN to reduce risks.
• Continuous monitoring: Establish processes for monitoring and rapid response to incidents.

What security measures apply to devices?

Device-level protection covers both hardware and the underlying operating systems. In particular, systems such as Windows, Mac and Linux have different approaches to managing users, groups and file permissions.

• User management: Each operating system has its own methodology for managing users and groups. Knowing the specifics of each platform is paramount.
• File permissions: Knowing how to set permissions in Linux and the differences with DAC and Mac gives us more control over who accesses what in our environment.
• Device management models: Understand the different approaches to device management in an enterprise, such as BYOD or COPE, depending on your security policy.

How to secure IoT devices in the organization?

IoT devices represent a new frontier in enterprise security. With more and more connected devices in enterprises, there is a need to adequately secure them to avoid vulnerabilities.

• IoT-specific risks: Identify the unique threats that affect these devices.
• Protection controls: Implement strong authentication methods and segregated networks for IoT.
• Regular updating and maintenance: Ensure that all IoT devices have the latest security updates.

What is the importance of knowing cybersecurity terms and acronyms?

Knowing the glossary and terminologies is key for a professional in this area. As in the case of the RTOS (Real Time Operating System) exam question, understanding acronyms can be critical to identifying an appropriate solution to specific problems.

• Compression of terms: Allows us to quickly understand requirements in a variety of contexts.
• Preparation for certification exams: Knowledge of acronyms and specific terms is essential to perform well on certification assessments.
• Decision support: Facilitates recognition of the appropriate technology to implement based on its characteristics and applications.

This knowledge will not only help you in certifications, but will also strengthen your training and skills to face daily challenges in the cybersecurity sector. Stay informed, keep learning and hone your skills!